Mitsubishi Electric FR-A820-00046 (0.4K), Instruction Manual

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Parameters Ethernet communication (FR-A800-E)
FR-A800 5 - 797
Modbus® register
The following shows the Modbus® registers for system environment variables (read/write), real time
monitor items (read), parameters (read/write), faults history data (read/write), and model information
monitor items (read).
●
System environment variables
Communication parameter settings are not cleared.
At a write, the data is set as the control input command.
At a read, the data is read as the inverter running status.
At a write, the data is set as the operation mode setting.
At a read, the data is read as the operation mode setting.
The signal within parentheses ( ) is the initial status. The input signal function can be changed using
Pr. 180 to Pr. 189 (input terminal function selection) (page 5-439).
JOG operation/automatic restart after instantaneous power failure/start self-holding selection/
reset cannot be controlled over a network, so in the initial status bit 6, bit 9, bit 11, and bit 12 are
invalid. To use bit 6, bit 9, bit 11, and bit 12, change the signal by Pr. 185, Pr.186, Pr. 188, or Pr. 189.
The inverter run enable signal is in the initial status for the separated converter type.
Register Definition Read/Write Remarks
40002 Inverter reset Write Any value can be written
40003 Parameter clear Write Set H965A for the write value.
40004 All parameter clear Write Set H99AA for the write value.
40006
Parameter clear
Write Set H5A96 for the write value.
40007
All parameter clear
Write Set HAA99 for the write value.
40009
Inverter status/control input command
Read/Write Refer to the following table (tab. 5-380).
40010
Operation mode/inverter setting
Read/Write Refer to the following table (tab. 5-380).
40014 Running frequency (RAM value) Read/Write
The display can be changed to the rotations
per minute using Pr. 37, Pr. 144 and Pr. 811.
(Refer to page 5-341.)
40015 Running frequency (EEPROM value) Write
Tab. 5-379: System environment variable
Bit
Definition
Control input command Inverter status
0 Stop command
RUN (Inverter running)
1 Forward rotation command During forward rotation
2 Reverse rotation command During reverse rotation
3
RH (High-speed operation command) SU (Up to frequency)
4
RM (Middle-speed operation command) OL (Overload warning)
5
RL (Low-speed operation command) IPF (Instantaneous power failure)
6
JOG (Jog operation selection) FU (Output frequency detection)
7
RT (Second function selection) ABC1 (Fault)
8
AU (Terminal 4 input selection) ABC2 (
⎯
)
9
CS (Selection of automatic restart after instantaneous
power failure)
Safety monitor output
10 MRS (Output stop) 0
11
STP (STOP) (Start self-holding selection)
0
12
RES (Inverter reset)
0
13 0 0
14 0 0
15 0 Fault occurrence
Tab. 5-380: Inverter status/control input command